Clock.



H. J. TREGANZA.

CLOCK. APPLICATION FILED JUNE 4, 1910.

1,022,21 3. Patented Apr. 2, 1912.

Eh WW 2 F I 7 v 5 5 6 8 c 71 14 171567365566" I yg venzor- UNITEDsra'rns PATENT canton HOWARD J. TREGANZA, OF NEW YORK, N. Y., ASSIGNORTO THE ANSONIA CLOCK COMPANY, OF NEW YORK, N. Y., A CORPORATION OFCONNECTICUT.

CLOCK.

. Specification of Letters Patent.

Application filed June 4, 1910. Serial No. 564,996.

To all guitom it may concern: I

Be itknown that I, I'IOWARD J Tnnsanza, a citizen of the United States,and resident of the borough of Brooklyn, in the city and State of NewYork, have invented a new and useful Improvement in Clocks, of which thefollowing is a specification.

My invention relates to clocks and more particularly to mechanism forsetting the clock, the object being to provide a set stem which'willoperate directly on the center shaft to set the clock but which will, inits normal position, be disengaged from the center so as not to become adrag on the train whennot in use for setting purposes.

A practical embodiment of the invention 1s represented ln'theaccompanying drawings in which- Figure 1 represents a clock train inside elevation, the main spring being omitted. Fig. 2 is'ja longitudinalcentral section of the same showing the parts in-the position which theyoccupy when the set stem is disengaged from the center shaft or arbor.Fig. 3 is a transverse section in the plane of the line A--A of Fig.1,.and Fig. 4 is a partial longitudinal sect-ion showing the 'positionof the parts when the set stem is engaged with the-central shaft orarbor.

The main spring arbor is denoted by 1, and it is mounted in a suitableframe, denoted as awhole by 2. In the form which I have chosen toillustrate my. invention, the main spring arbor 1 is in alinement withthe central shaft or arbor IV hen my invention is applied to a turewhere the main spring arbor IS in alinement with the central arbor 3, asin the present instance, the main spring arbor 1 is bored at one end toreceive a collet 4, in the faceof which there is formed a slot 5, seeFigs. 3 and 4. The collet 4 is sestruccured to astcm 6 which extendsfrom the back of the arbor 1, through a reduced opening 7 .in the arbor1, and carries on its rear end a collet 8, the end of which is sqaaredas at 9, to receive the set button 10'. The atter is conveniently heldon the collet 8 by calving the collets 4 and 8 is larger than the bore7, intermediate of the location of the,

two collets and suificicnt room is left be tween the inner end of thecollet 8 and the shoulder formed at t-he rear end of the reduced bore 7to insert a coil spring 12, the

means of a screw 11. The bore for re tension of which serves to normallyhold the rod or stem 6 and parts carried thereby in a retracted positionwith the collet-4 out of engagement with the central shaft or arbor 3. l

The rear end of the central shaft or arbor 3 is received in a bearingpiece 13 seated in the forward end of the enlarged bore which receivesthe collet 4, and the extreme rear end of the central shaft or arbor 3is fiattened, as shown at 14, to enter with an easy Patented Ap1a2,1912.

sliding fit in the slot- 5 in the forward end of the collet 4.

When it is desired to set the clock, the

set button 10 may be grasped by the hand of the operator and the rod 6pressed forward until the flattened portion 14 of the I central shaft orarbor is received in the slot 5, when the rod 6 may be turned in the onedirection or the other to set the clock as desired. When the settingoperation is completed, and the set button 10 released, the

spring 12 will force the rod or stem 6 .and the collets thereonrcarwardly, releasing the 'collet 4 from the flattened portion 14 of thecentral shaft or arbor, and thus relieving the central shaft or arbor ofany drag.

The structure is simple and effective.

It is evident that changes might be resorted to in the form andarrangement of the several parts without departing from the spirit andscope of my invention; hence I do not wish to limit myself strictly tothe structure herein shown, but

What I claim is:

1. In a clock, the combination with thecentral shaft or arbor and theWinding arbor provided with a bore having an enlarged portion, of a setstem mounted in the bore of the winding arbor to move toward and awayfrom the qentral shaft or arbor and provided with a collet. fixedthereon within the enlarged portion of the said bore to limitthemovement of the setstem in a direction away from the central shaft orarbor and a spring for normally'holding the set stem away from thecentral shaft or arbor. I

'2. In a clock, the combination with the central shaft or arbor and thewinding ar-- ed in the contracted portion of the bore and provided withcollets thereon located in the enlarged portions of the bore and aspring preeence of two Witnesses, this third day of located intermediateof one of the toilets June 1910. and the contracted portion of the borefor holding the set. stein normally awe Y from I HOWVARD TREGANZA' ii'the centred shaft 02' arbor. 'Witnesses:

In testimony, that I claim the foregoing ROBERT MOFARLANE,

as my invention, I have signed my name in l JOSEPH SCHWEIZER.

